BS EN 61557-5-2007 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. — Equipment for testing, measuring or monitoring of protective measures — Part 5.pdf
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1、BRITISH STANDARD BS EN 61557-5:2007 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 5: Resistance to earth The European Standard EN 61557-5:2007 has the status of a British Standard I
2、CS 17.220.20; 29.080.01; 29.240.01 ? Licensed Copy: Wang Bin, na, Fri Sep 14 00:51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61557-5:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007 ISBN 978 0 580 50858 5 N
3、ational foreword This British Standard was published by BSI. It is the UK implementation of EN 61557-5:2007. It is identical with IEC 61557-5:2007. It supersedes BS EN 61557-5:1997, which will be withdrawn on 1 March 2010. The UK participation in its preparation was entrusted to Technical Committee
4、PEL/85, Measuring equipment for electrical and electromagnetic quantities. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct
5、 application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: Wang Bin, na, Fri Sep 14 00:51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61557-5 NORME EUROPENNE EUROPISCH
6、E NORM March 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by a
7、ny means reserved worldwide for CENELEC members. Ref. No. EN 61557-5:2007 E ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-5:1997 English version Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of pro
8、tective measures - Part 5: Resistance to earth (IEC 61557-5:2007) Scurit lectrique dans les rseaux de distribution basse tension de 1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesures de protection - Partie 5: Rsistance la terre (CEI 61557-5:2007) Elektrisc
9、he Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Messen oder berwachen von Schutzmanahmen - Teil 5: Erdungwiderstand (IEC 61557-5:2007) This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CENELEC Intern
10、al Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC mem
11、ber. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELE
12、C members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
13、Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Fri Sep 14 00:51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 61557-5:2007 2 Foreword The text of document 85/294/FDIS, future edition 2 of IEC 61557-5, prepared by IEC TC 85, Measuring equipment for electr
14、ical and electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61557-5 on 2007-03-01. This European Standard supersedes EN 61557-5:1997. The following changes were made with respect to EN 61557-5:1997: complete revision of the definitions; revis
15、ion of some requirements. This standard is to be used in conjunction with EN 61557-1. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-12-01 latest date by which the natio
16、nal standards conflicting with the EN have to be withdrawn (dow) 2010-03-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61557-5:2007 was approved by CENELEC as a European Standard without any modification. _ Licensed Copy: Wang Bin, na, Fri Sep
17、 14 00:51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 3 EN 61557-5:2007 CONTENTS 1 Scope 4 2 Normative references .4 3 Terms and definitions .4 4 Requirements.5 5 Marking and operating instructions .6 5.1 Marking.6 5.2 Operating instructions .7 6 Tests7 Annex ZA (normative) Normative references to
18、 international publications with their corresponding European publications.8 Table 1 Calculation of operating uncertainty.5 Licensed Copy: Wang Bin, na, Fri Sep 14 00:51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 61557-5:2007 4 ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1 000
19、V a.c. AND 1 500 V d.c. EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES Part 5: Resistance to earth 1 Scope This part of IEC 61557 specifies the requirements for equipment for measuring earth resistance using an a.c. voltage. 2 Normative references The following referenced docu
20、ments are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61010-1:2001, Safety requirements for electrical equipment for measurement
21、, control, and laboratory use Part 1: General requirements IEC 61557-1, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 1: General requirements 3 Terms and definitions For the purpose
22、s of this document, the definitions given in IEC 61557-1 and the following definitions apply. 3.1 series interference voltage extraneous voltage superimposed on the measuring voltage 3.2 auxiliary earth electrode additional earth electrode for a current required for the purpose of measurements 3.3 a
23、uxiliary earth electrode resistance RH resistance of an additional earth electrode through which current flows that is required for the purpose of measurements 3.4 probe additional earth electrode used as a probe for sampling potentials during measurements Licensed Copy: Wang Bin, na, Fri Sep 14 00:
24、51:02 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 标准分享网 www. b z f x w. c o m 5 EN 61557-5:2007 3.5 probe resistance RS earth electrode resistance of an additional earth electrode used as a probe for sampling potentials during measurements 4 Requirements The following requirements as well as those gi
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